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A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study

PURPOSE: The purpose of this study is to assess the accuracy of three intraoral scanners along the complete dental arch and evaluate the feasibility of the assessment methodology for further in vivo analysis. MATERIALS AND METHODS: A specific measurement pattern was fabricated and measured using a c...

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Autores principales: Iturrate, Mikel, Lizundia, Erlantz, Amezua, Xabier, Solaberrieta, Eneko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Academy of Prosthodontics 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6933048/
https://www.ncbi.nlm.nih.gov/pubmed/31897272
http://dx.doi.org/10.4047/jap.2019.11.6.331
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author Iturrate, Mikel
Lizundia, Erlantz
Amezua, Xabier
Solaberrieta, Eneko
author_facet Iturrate, Mikel
Lizundia, Erlantz
Amezua, Xabier
Solaberrieta, Eneko
author_sort Iturrate, Mikel
collection PubMed
description PURPOSE: The purpose of this study is to assess the accuracy of three intraoral scanners along the complete dental arch and evaluate the feasibility of the assessment methodology for further in vivo analysis. MATERIALS AND METHODS: A specific measurement pattern was fabricated and measured using a coordinate measuring machine for the assessment of control distances and angles. Afterwards, the pattern was placed and fixed in replica of an upper jaw for their subsequent scans (10 times) using 3 intraoral scanners, namely iTero Element1, Trios 3, and True Definition. 4 reference distances and 5 angles were measured and compared with the controls. Trueness and precision were assessed for each IOS: trueness, as the deviation of the measures from the control ones, while precision, as the dispersion of measurements in each reference parameter. These measurements were carried out using software for analyzing 3-dimensional data. Data analysis software was used for statistical and measurements analysis (α=.05). RESULTS: Significant differences (P<.05) were found depending on the intraoral scanner used. Best trueness values were achieved with iTero Element1 (mean from 10 ± 7 µm to 91 ± 63 µm) while the worst values were obtained with Trios3 (mean from 42 ± 23 µm to 174 ± 77 µm). Trueness analysis in angle measurements, as well as precision analysis, did not show conclusive results. CONCLUSION: iTero Element1 was more accurate than the current versions of Trios3 and True Definition. Importantly, the proposed methodology is considered reliable for analyzing accuracy in any dental arch length and valid for assessing both trueness and precision in an in vivo study.
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spelling pubmed-69330482020-01-02 A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study Iturrate, Mikel Lizundia, Erlantz Amezua, Xabier Solaberrieta, Eneko J Adv Prosthodont Original Article PURPOSE: The purpose of this study is to assess the accuracy of three intraoral scanners along the complete dental arch and evaluate the feasibility of the assessment methodology for further in vivo analysis. MATERIALS AND METHODS: A specific measurement pattern was fabricated and measured using a coordinate measuring machine for the assessment of control distances and angles. Afterwards, the pattern was placed and fixed in replica of an upper jaw for their subsequent scans (10 times) using 3 intraoral scanners, namely iTero Element1, Trios 3, and True Definition. 4 reference distances and 5 angles were measured and compared with the controls. Trueness and precision were assessed for each IOS: trueness, as the deviation of the measures from the control ones, while precision, as the dispersion of measurements in each reference parameter. These measurements were carried out using software for analyzing 3-dimensional data. Data analysis software was used for statistical and measurements analysis (α=.05). RESULTS: Significant differences (P<.05) were found depending on the intraoral scanner used. Best trueness values were achieved with iTero Element1 (mean from 10 ± 7 µm to 91 ± 63 µm) while the worst values were obtained with Trios3 (mean from 42 ± 23 µm to 174 ± 77 µm). Trueness analysis in angle measurements, as well as precision analysis, did not show conclusive results. CONCLUSION: iTero Element1 was more accurate than the current versions of Trios3 and True Definition. Importantly, the proposed methodology is considered reliable for analyzing accuracy in any dental arch length and valid for assessing both trueness and precision in an in vivo study. The Korean Academy of Prosthodontics 2019-12 2019-12-18 /pmc/articles/PMC6933048/ /pubmed/31897272 http://dx.doi.org/10.4047/jap.2019.11.6.331 Text en © 2019 The Korean Academy of Prosthodontics http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Iturrate, Mikel
Lizundia, Erlantz
Amezua, Xabier
Solaberrieta, Eneko
A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study
title A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study
title_full A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study
title_fullStr A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study
title_full_unstemmed A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study
title_short A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study
title_sort new method to measure the accuracy of intraoral scanners along the complete dental arch: a pilot study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6933048/
https://www.ncbi.nlm.nih.gov/pubmed/31897272
http://dx.doi.org/10.4047/jap.2019.11.6.331
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